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We identify and discuss the most important warning signs of global catastrophic risks for you by parsing millions of news pieces and discussing them with our elite forecasters.

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Latest Issues

🟩 Strait of Hormuz traffic rises, US fears China has access to restricted chip manufacturing machine, Ebola deaths rapidly increase || Global Risks Weekly Roundup #25/2026

Executive summary

Geopolitics: A peace deal between the US and Iran was officially signed by both parties, and traffic subsequently rose in the Strait of Hormuz but remained well below pre-war levels. Ukraine carried out its largest at...

6 days ago
22

🟩 Trump administration imposes export controls on new Anthropic model, US-Iran peace deal announced, Ebola spreads further || Global Risks Weekly Roundup #24/2026

Executive summary

Geopolitics: The US and Iran announced that a peace deal has been agreed. Putin acknowledged that Ukraine’s strikes on Russian territory are harming Russia’s economy.

  • Before 2027, will a ceasefire (covering land, s...
13 days ago
25

🟩 Iran and Israel exchange fire for first time since April, Trump signs AI executive order, Ebola outbreak grows || Global Risks Weekly Roundup #23/2026

Executive summary

Geopolitics: Iran and Israel exchanged fire for the first time since the fragile ceasefire began in April. A Ukrainian maritime drone crashed into a Black Sea port in Romania.

  • Before September 2026, will a NATO cou...
20 days ago
21
1

🟩 Russian drone hits Romanian apartment block, Ebola deaths rise at slower pace, Anthropic surpasses OpenAI valuation || Global Risks Weekly Roundup #22/2026

Executive summary

Geopolitics: A Russian drone hit an apartment building in Romania, injuring two people. Israel continues to strike Lebanon and Gaza.

  • Will at least 10,000 deaths in Gaza and Lebanon be attributed to Israeli military...
a month ago
14
1

🟩 Renewed US-Iran negotiations, OpenAI and DeepMind models solve Erdos problems, Ebola deaths increase || Global Risks Weekly Roundup #21/2026

Executive summary

Geopolitics: Trump said that a deal with Iran to reopen the Strait of Hormuz is near. Rubio called Cuba a leading state sponsor of terror and questioned whether diplomacy with the regime would work.

  • Will the US car...
a month ago
19
3

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Authors

The writers behind this newsletter.

  • Nuño Sempere

    Head of foresight at Sentinel, a team covering the top global catastrophic risks each week. Also write a monthly forecasting newsletter at forecasting.substack.com

  • Tolga Bilge

    AI Policy Researcher at ControlAI

  • Vidur Kapur

    Superforecaster at Good Judgment. Also forecasting at Sentinel, Swift Centre, Samotsvety, RAND and a hedge fund. Impartial beneficence enthusiast.

  • belikewater

    Forecasting.

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